Found this site the other day when I was looking for 2LB
Link on left "Manufacturer by state"
Looking for expanded polystyrene blocks or sheets that are 50-90 Kg/M^3 (3.5 - 6 lbs./ft^3).
Thanks. I do know of that site but even with that (though I can't claim to have combed through all the suppliers) I can't find anyone who manufactures EPS in densities (in sheets or blocks) great than 2 lbs/cubic foot.
I'm looking for the same thing.. The only thing I'm finding is custom molders who would do it for me, but they are much more expensive.
I am even looking into making it myself, but the molding process seems too complex for DIY project..
Anyone found anything different?